✅ BSP 1/2" ceramic valve to fit PAINI ASME A112.18.1UPC ANSI NSF61 (short stem 53mm) Full Dimensions in Second image ✅ Quarter Turn Ceramic Cartridge (Pair) Hot and Cold (one Anticlockwise and one clockwise opening) Brass M4 screw provided ✅ Cartridge has 20 splines ✅ **please check the dimensions of the valve, long stem 55mm valve also available see other items** ✅ Fits many Brita Filter kitchen taps Premium Quality Faucet Tap Kitchen Cartridges. Please check dimensions before purchasing to ensure compatibly. BSP 1/2" Valves. Easy to replace.